Wall heat transfer in high-enthalpy hypersonic turbulent boundary layers

JY Li, M Yu, D Sun, PX Liu, XX Yuan - Physics of Fluids, 2022 - pubs.aip.org
In this paper, we investigate the differences in wall heat transfer between the low-and high-
enthalpy turbulent boundary layers by exploiting direct numerical simulation databases of …

Numerical tripping of high-speed turbulent boundary layers

A Ceci, A Palumbo, J Larsson, S Pirozzoli - Theoretical and Computational …, 2022 - Springer
The influence of turbulence inflow generation on direct numerical simulations (DNS) of high-
speed turbulent boundary layers at Mach numbers of 2 and 5.84 is investigated. Two main …

[HTML][HTML] Analysis of improved digital filter inflow generation methods for compressible turbulent boundary layers

L Laguarda, S Hickel - Computers & Fluids, 2024 - Elsevier
We propose several enhancements to improve the accuracy and performance of the digital
filter turbulent inflow generation technique and assess their efficacy in the context of wall …

Dynamics of strong swept-shock/turbulent-boundary-layer interactions

MC Adler, DV Gaitonde - Journal of Fluid Mechanics, 2020 - cambridge.org
The mechanisms of unsteadiness in nominally two-dimensional (2-D) shock/turbulent-
boundary-layer interactions (STBLIs) cannot be directly extended to three-dimensional (3-D) …

Effect of plasma actuator-based control on flow-field and acoustics of supersonic rectangular jets

ALN Prasad, S Unnikrishnan - Journal of Fluid Mechanics, 2023 - cambridge.org
We perform a computational study on the effects of localized arc filament plasma actuator
based control on the flow field and acoustics of a supersonic 2: 1 aspect ratio rectangular jet …

On the wake structure of a micro-ramp vortex generator in hypersonic flow

D Sun, J Chen, C Li, P Liu, Q Guo, X Yuan - Physics of fluids, 2020 - pubs.aip.org
In this paper, a direct numerical simulation is performed to study the wake structures of a
micro-ramp vortex generator in the hypersonic flow. The whole evolution process of vortical …

Flow similarity in strong swept-shock/turbulent-boundary-layer interactions

MC Adler, DV Gaitonde - AIAA Journal, 2019 - arc.aiaa.org
The separation length employed to scale unsteady phenomena in strong (separated)
nominally two-dimensional (2-D) shock/turbulent-boundary-layer interactions cannot be …

Numerical strategy to perform direct numerical simulations of hypersonic shock/boundary-layer interaction in chemical nonequilibrium

PS Volpiani - Shock Waves, 2021 - Springer
Literature regarding hypersonic shock/boundary-layer interaction is mostly restricted to
calorically perfect gases, even though this condition is far from reality when temperature …

Detached eddy simulation of blunt-fin-induced shock-wave/boundary-layer interaction

H Ngoh, J Poggie - AIAA Journal, 2022 - arc.aiaa.org
The unsteady characteristics of shock-wave/boundary-layer interaction induced by a blunt
fin in Mach 3 flow were studied using enhanced delayed detached eddy simulation with …

Flow instabilities and impact of ramp–isolator junction on shock–boundary-layer interactions in a supersonic intake

N Khobragade, S Unnikrishnan… - Journal of Fluid …, 2022 - cambridge.org
Boundary layer instabilities and shock–boundary-layer interactions (SBLIs) critically affect
the performance and safe operation of mixed-compression air intakes. We present a …